"We have detained about 22 people responsible for yesterday's violence. We have not arrested anyone," Deputy Commissioner of Police (east Delhi) P.S. Kushwaha told IANS.

One person was killed and many people, including 15 policemen, were injured in Mayur Vihar phase-III and its adjoining Khoda colony area, situated in Ghaziabad, Sunday when police fired at a mob that went on the rampage after two men on a two-wheeler were injured when police tried to forcibly stop them.